(Subscriber Identity Module lock) A function in GSM cellphones that restricts the phone's use to a particular cellular carrier identified by a SIM card. SIM locks are used to ensure subscribers finish ...

Losing a smartphone is bad enough. Losing control of the mobile number attached to it can be considerably worse. Your SIM is connected to calls, text messages and, in many cases, account recovery and ...

Some iPhone 13 Pro users are reporting a serious SIM lock bug after updating to iOS 18.5. The issue restricts cellular access and renders the device unable to connect to mobile networks. While Apple ...

Android users could soon finally be able to easily use any supported carrier at the end of their service contract without having to jump through hoops or use other means to unlock the device. That is ...

GSM phones can be "locked", that is made to accept only SIM cards belonging to a specific network. Typically, this is done so that phones will work only on the network of the carrier. SIM-locked ...